Introduction - If you have any usage issues, please Google them yourself
First, experimental purposes and requirements on the basis of model transformation experiments, by implementing the following experiment content, master OpenGL three-dimensional observation, perspective projection, orthogonal projection parameter settings, and can use the keyboard to move the observation camera in perspective projection and positive switching between AC projection, content verification curriculum dimensional observation further deepen the OpenGL 3D coordinates and matrix transform the understanding and application. Second, experimental content and principles have been compiled using Visual Studio C++ project, and modify the code to generate the following graph: " tables and teapots orthographic and perspective projection" can use the keyboard to change the camera position and viewing direction (key for asdwzc, you can set their own) to add keyboard control of the teapot, mainly along the teapot and tea desktop panning rotation around its own axis operation t